Closure for gas-tanks.



No. 774,439. PATENTED NOV. 8, 1904.

.v E. F. LLOYD. GLOSURE FOR GAS TANKS.

APPLICATION FILED JULY 1l 1903.

4'H0 MODEL. 2 SHEETS-SHEET 1,

uforneys.

No. 774,439. PATENTED NOV. 8', 1904.

v E. F. LLOYD.

CLOSURE FOR GAS TANKS.

`w APPLICATION FILED JULY 1, 1903.

NO MODEL. ZSHEETS-SHEET 2.

5 J I l VPater'ited November 8, 1904.

PATENT Trice.,

ERNEST F. LLOYD, OF DETROIT, MICHIGAN.

oLosuRE FOR GAS-TANKS.

SPECIFICATION forming part of LettersV Patent No. 774,439, dated November 8, 1904.

Application filed July l, 1903. Serial No. 163,836. (No model.)

To all whom, it N71/ty concern.'

Be it known that I, ERNEST F. LLOYD, a citizen of the United States of America, residing at Detroit, in the county of Vayne and State of Michigan, have invented certain new and useful Improvements in Closures for Gas- Tanks, of which the following is a specification, reference being' had therein to the accompanying drawings.

This invention relates to improvements in the construction of dry seals for gas-tanks, purifiers, Sac.; and its object is to provide a strong, rigid, and eiicient construction requiring a minimum number of clamps for the cover and employing' a so-called dry lute as the sealing means, which lute is rigidly secured against displacement and in such manner as to strengthen the cover.

The invention also consists in providing improved clarnps for securing the cover in place and in certain other new and useful features, all as hereinafter more fully described, reference being had to the accompanying drawings, in which- Figure l is a plan view showing a portion of a device embodying the invention; Fig. 2, the same, showinga smaller portion of the device on an enlarged scale. Fig. 3 is an enlarged detail showing a vertical section through one of the clamps and adjacent parts of the purifier-box and cover, and Fig. 4 is a similar detail showing a modified construction of clamps.

As shown in the drawings, A represents the side wall of the purifier-box, gas-tank, or other gas-receptacle, provided at its upper edge or rirn with a iange A2, forming a seat A/ for the cover B, which consists of sheet-metal plates B', riveted together and strengthened by transverse I-beams B2, riveted to the upper side of said plates. To the under side of these plates, along the edges of the cover, are riveted channel-iron bars O, said bars projecting beyond the plates and forming the edges of the cover, which is thus made very rigid, the form of the bars preventing the edge of the cover from springing away from its seat A/ between the clamps which secure it to the boX. By securing the channel-bar to the lower side of the cover the same is strengthened without an upward projection being' formed at the edge, and therefore any waterwhich may fall on the top will run off and any dirt or other accumulation may be swept off without any hindrance. To form a tight joint between the cover and boX, a rubber gasket or dry lute D is provided, consisting of a rubber strip or band which is in cross-section of a greater vertical thickness than horizontal width and is secured to the inner side of the outer flange O of the channel O by bolts D passing through openings in said fiange, lute, and a metal strip D2, between which strip and the fiange said lute is clamped. The lute or gasket projects below the flange O' and strip D2 sufiiciently to form a good contact with the seat A and make a perfect seal, and by thus securing the lute between the strip and flange with the bolts passing therethrough there is no possibility that said lute will become detached by its adhesion to its seat when the cover is removed, and when the lute has become dry and shrunken from exposure and use the nuts may be turned up on the bolts to draw the strip toward the fiange and again firmly clamp the lute. f

To secure the cover to the box, the clamps E are provided at intervals along the edges of 'the cover, each clamp consisting of a bracket E', secured to the cover and provided with an eye E2 to receive the binding-bolt E3, the lower end of which bolt is provided with a head E* to engage the under side of the flange A2 on the box, said flange being provided with slots A3, extending inward from its outer edge to receive the bolts, and the upper end of the bolt is screw-threaded and provided with a hand-wheel E5 to engage the upper side of the bracket and draw the cover to its seat. The eye E2 at its upper end is of the same diameter as the bolt E3, but is graduall)7 enlarged in a direction longitudinally of the bracket toward its lower end, forming a tapered opening to allow the said bolt to be vswung therein, so that in taking off the cover it is only necessary to turn the hand-wheel sufficiently to free the head from the flange, when the bolt may be swung out of the slot in the flange. With this construction the clamp is carried by and at all times secured to the cover, so that when said cover is removed the clamps are also removed and are not in the way in refilling the boX.

The modified f'orm of clamp shown in Fig. 4 is used where the boxes are placed side by side with no space between in which the bolts could swing, in which case a channel-bar Fis provided between the boxes or forming a part of them, and to this bar is secured upwardly-eXtending bolts Gr, each of which are screw-threaded and provided with a nut at their upper ends to engage the upper side of a hook G, which is slotted inward from one side at G2 to receive the bolt and is pivotally secured to the cover B by a bolt G3. To remove the cover, the nut on the bolt G is slackened and the hook Gr turned laterally out of' eng'agement with said bolt.

Having thus fully described my invention, what I claim isl. The combination with a cover, of a flange on said cover having openings, a dry lute engaging one side of' said flange and provided with openings corresponding with the openings in the flange` a detachable strip engaging the opposite side ofl said lute having openings registering with the openings in the flange and lute, and bolts passing through said openings to hold the lute between the strip and flange and draw the strip toward the flange to clamp the lute.

2. The combination with a receptacle for gas formed with a seat; of a cover, a channelbar secured to the lower side ofsaid cover and having openings in one ofl its flanges, a dry lute of' a greater width than the width of the flange to project below the lower edge of the same and engage the seat on the receptacle and having openings corresponding to the openings in the flange, a strip of' a width equal to the width of' the said flange having openings registering with the openings in the flange and lute, and bolts passing through the openings in the flange, lute, and strip to clamp the lute between the flange and strip and secure the same in place.

3. The combination with a receptacle for gas and a cover for said receptacle, ofl a dry lute secured to the cover, brackets secured to the cover and provided with tapered openings, bolts in said openings to swingftherein, a ange on the receptacle provided with slots to receive the ends of said bolts, heads on the bolts to engage the flange, and means on the upper ends of' said bolts for engaging the brackets to secure the cover to the receptacle.

4. The combination with a receptacle for gas, of' a flange on said receptacle provided with slots extending inward from its outer edge, a cover, a dry lute secured to the edges ofl said cover, brackets secured to the cover and each provided with an opening of' greater diameter at its lower than its upper end, bolts extending loosely through said openings and adapted to swing therein to engage the slots in the flange on the receptacle, hand-wheels on the upper ends of said bolts in engagement with said brackets, and heads on said bolts to engage the lower side of the flange.

In testimony whereofl I afliX my signature in presence of' two witnesses.

ERNEST F. LLOYD.

Witnesses:

THOMAS LONGSTAFF, Otr'ro F. BARTHEL. 

